US 12,273,481 B2
Managing service interrupts in lawful interception
Antonio Giorgio Gaggia, Salerno (IT); Mariano Russo, Naples (IT); Dario Scudiero, Poggomarino (IT); Daniele Gaito, Naples (IT); Chiara Santella, Nocera Inferiore (IT); and Carmine Galotto, Pagani (IT)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/008,987
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jun. 9, 2020, PCT No. PCT/SE2020/050580
§ 371(c)(1), (2) Date Dec. 8, 2022,
PCT Pub. No. WO2021/251583, PCT Pub. Date Dec. 16, 2021.
Prior Publication US 2023/0216951 A1, Jul. 6, 2023
Int. Cl. H04M 11/04 (2006.01); H04M 3/22 (2006.01)
CPC H04M 3/2281 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method for enabling a delivery function, DF, to convey information about a lawful interception, LI, service interruption to a law enforcement agency, LEA, the method performed by a computer system comprising a LI, service interruption manager function, SIMF, in a telecommunication network, the method comprising:
receiving information that indicates that LI service interruption associated with an LI task has occurred,
determining, based on the received information, whether a status regarding the LI service interruption associated with the LI task has a current status that is any of: terminated, ongoing, or initiated, and
transmitting, to a delivery function, DF, via an HI2 interface, a message comprising at least the determined status regarding the LI service interruption.